package com.atguigu.product.exception;

import com.atguigu.common.exception.BizCodeEnum;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * @author polaris
 * @date 2020/12/25 3:39 下午
 * <p>
 * 集中处理所有异常
 */
@Slf4j
@RestControllerAdvice(basePackages = "co")
public class GulimallExceptionControllerAdvice {

  //数据校验异常
  @ExceptionHandler(value = MethodArgumentNotValidException.class)
  public R handleValidException(MethodArgumentNotValidException e) {
    log.error("数据校验出现异常{},异常类型{}", e.getMessage(), e.getClass());
    BindingResult result = e.getBindingResult();
    Map<String, String> errorMap = new HashMap<>();
    result.getFieldErrors().forEach(fieldError -> {
      errorMap.put(fieldError.getField(), fieldError.getDefaultMessage());
    });
    return R.error(BizCodeEnum.VAILD_EXCEPTION.getCode(), BizCodeEnum.VAILD_EXCEPTION.getMsg()).put("data", errorMap);
  }

  @ExceptionHandler(value = Throwable.class)
  public R handleException(Throwable throwable) {
    log.error("错误: ", throwable);
    return R.error(BizCodeEnum.UNKNOW_EXCEPTION.getCode(), BizCodeEnum.UNKNOW_EXCEPTION.getMsg());
  }
}
